JF48S12-1250 Datasheet, PDF (7/15 Pages) Wall Industries,Inc. – DC/DC Converter

TECHNICAL DATASHEET
JF48S12-1250
Graph 1: Efficiency vs. Output Current
90
85
80
75
75Vin
70
48Vin
36Vin
65
60
55
50
125
250
375
500
625
750
875 1000 1125 1250
Output Current, Iout (mA)
Graph 3: Output Current vs. Ambient Temperature & Airflow
1.40
1.20
1.00
0.80
Natural convection
1.0m/s (200LFM)
0.60
2.0m/s (400LFM)
0.40
3.0m/s (600LFM)
0.20
0.00
-40 -20
0
20 40 60 80 100
Ambient Temperature, Ta (°C)
Graph 5: Typical Input Start-Up and Output Rise Characteristic
Graph 2: Efficiency vs. Input Voltage (Io=Full Load)
88
87.5
87
86.5
86
85.5
85
84.5
84
36 40 44 48 52 56 60 64 68 75
Input Voltage, Vin (V)
Graph 4: Conducted Emission of EN55022 Class B
(Nominal Vin, Io = Full Load)
Frequency (MHz)
Graph 6: Typical Output Ripple and Noise
(Nominal Vin, Io = Full Load)
(888) 597-WALL
www.wallindustries.com
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